The application process did run - as it stood without any changes. I updated gus_employee salary to 55, clicked the link, and it was set to 66
I'm not sure what makes you think otherwise?

A word of note - provide more information to volunteers of these forums - I went on a goose chase trying to work out where your coding attempts were, only to find app 24561 wasn't the application with the actual code - the links you suggested took me to a different application (40867).

So I spent time identifying what's going on only to find the process did actually work.